PreviosFrameSwitch Material Expression Does Not Work With Displacement.

UE - Graphics Features - Aug 21, 2018

The PreviousFrameSwitch material expression works as expected only with world position offset, but not tessellated displacement. Found in 4.19 CL# 4033788, 4.20 CL# 4233996, 4.21 CL# 4302610 ...

Datasmith & mikktspace tangent cause entities to glow with lightmaps

UE - Editor - Content Pipeline - Datasmith - Exporters - Feb 22, 2019

The steps above are reduced to their simplest expression.  I appears that several customers complained about lightmap baking resulting in glowing objects.  This typically happens on interior door fr ...

Crash exiting play in vr preview with -Vulkan and Oculus Rift

UE - Platform - XR - Dec 22, 2017

Editor crashes after exiting a play in vr session with -Vulkan enabled Exclusive to Oculus Rift ...

Diffing Tool showing false positive when diff'ing identical blueprints using FText input pin

UE - Editor - UI Systems - Localization - Sep 17, 2019

When diffing the two blueprints, the FText values are deemed different when they are the same. A workaround has been found by doing a pure string-compare for FText inside "GraphDiffControl::ArePinsD ...

The cloth mask vertexcolor is not updated when re-importing new vertexcolors

UE - Simulation - Physics - Character - Oct 7, 2019

The function UClothingAssetFactory::ImportToLodInternal that set the FClothPhysicalMeshData structure is not call again when we re-import so the vertex colors are not updated. ...

Reimport using reset material in the material conflict should rehook to existing matching material

UE - Editor - Content Pipeline - Import and Export - Jan 8, 2020

We currently cannot do this because the material import option are not save in the asset import data, so it search only in the local folder of the reimport mesh, those settings should be saved ...

[Feature Request] Allow include files to be added in custom nodes via separate entry

UE - Rendering Architecture - RHI - Jan 10, 2020

Suggested feature by a licensee and there have been a few use cases recently we've seen. [Link Removed] for vis ...

UMG Calibri font space between characters changes depending on the onscreen size of the textbox containing it

UE - Editor - UI Systems - Jan 14, 2020

Within a UMG Widget Blueprint. Calibri font space between characters changes depending on the onscreen size of the textbox widget containing it. ...

Gameplay Cue Tag Refences doesn't include blueprint nodes

UE - Gameplay - Jan 28, 2020

See this UDN post. ...